84497786 has 16 divisors (see below), whose sum is σ = 134605800. Its totient is φ = 39644160.

The previous prime is 84497783. The next prime is 84497797. The reversal of 84497786 is 68779448.

It can be written as a sum of positive squares in 4 ways, for example, as 69139225 + 15358561 = 8315^2 + 3919^2 .

It is not an unprimeable number, because it can be changed into a prime (84497783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8306 + ... + 15426.

Almost surely, 2^84497786 is an apocalyptic number.

84497786 is a deficient number, since it is larger than the sum of its proper divisors (50108014).

84497786 is a wasteful number, since it uses less digits than its factorization.

84497786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489.

The product of its digits is 2709504, while the sum is 53.

The square root of 84497786 is about 9192.2677289122. The cubic root of 84497786 is about 438.8153152060.

The spelling of 84497786 in words is "eighty-four million, four hundred ninety-seven thousand, seven hundred eighty-six".